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Electric metering pump for aircraft engine

A technology of aero-engine and metering pump, applied in the direction of machine/engine, pump, mechanical equipment, etc., can solve the problems of high failure rate, large volume of aero-engine metering device, low efficiency, etc., to reduce manufacturing cost, reduce product volume and Weight, the effect of improving reliability

Active Publication Date: 2011-12-07
BEIJING POWER MACHINERY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially to solve the problems of large volume, low efficiency and high failure rate of existing aero-engine fuel pressurization and metering devices

Method used

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  • Electric metering pump for aircraft engine
  • Electric metering pump for aircraft engine
  • Electric metering pump for aircraft engine

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Embodiment Construction

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0019] The embodiment of the present invention realizes the fuel increase and metering functions of the aero-engine through the electric metering pump, which can cancel or greatly simplify the structure of the engine transmission accessories, and reduce the area and weight of the maximum cross-section of the engine. In addition, in the embodiment of the present invention, since no fuel returns to the inlet of the pump or the fuel tank, the hydraulic oil circuit is also simplified, the energy loss of the system is reduced, the system effic...

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Abstract

The invention discloses an electric metering pump for an aircraft engine. The electric metering pump comprises a power supply interface, a communication interface, a drive control unit, and a lubrication cooling pump, a motor and a main oil pump which are coaxially connected, wherein the drive control unit is connected with the power supply interface and the communication interface and is used for driving the motor to operate and controlling the rotating speed according to a control command; the motor is used for driving the lubrication cooling pump and the main oil pump to rotate; the main oil pump is used for pressurizing oil liquid which flows into the main oil pump; and the drive control unit is used for controlling the oil supply amount of the main oil pump by controlling the rotating speed of the motor. By the electric metering pump, the fuel oil increasing and metering functions of the aircraft engine is realized, the structure of an engine transmission accessory can be eliminated or greatly simplified, and the maximum section area and the weight of the engine can be reduced; in addition, fuel oil does not flow back to an inlet or an oil tank of the pump, so that a hydraulic oil channel is simplified, the energy loss of a system is reduced, the efficiency of the system is improved, and the additional temperature rise of the fuel oil is reduced or eliminated.

Description

technical field [0001] The invention relates to the technical field of aerospace machinery design and manufacture, in particular to an intelligent electric metering pump for aeroengines. Background technique [0002] At present, the fuel boosting and metering of aero-engines are mainly realized by the fuel supply device and the regulating device. The engine rotor torque can be transmitted to the fuel supply device through the engine transmission accessories, that is, the engine rotor provides power for the fuel supply device. In this way, the fuel enters the regulating device after being pressurized by the fuel supply device, and the regulating device regulates the fuel entering the engine according to the engine command. Usually, the fuel supply device and the regulating device are large in size and complex in structure. There are many sets of precision couplings inside the product. These precision couplings have high requirements on the degree of pollution of fuel, so impu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B13/00
Inventor 丁瑛玮李胜利赵生超刘瑞杰王冬兰
Owner BEIJING POWER MACHINERY INST
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